korean english


Home > 게시판 > 세미나

Colloquium <10/17> Graphitic Carbon Nanostructures

2008.10.27 11:43

관리자 조회 수:127390

아래와 같이 콜로퀴움을 개최하오니 많이 참석해 주시기 바랍니다. 4시부터 2층 라운지세미나실에 다과를 준비하오니 많은 참석 부탁드립니다 아 래 1. 제 목: Graphitic Carbon Nanostructures: From Analogy of Relativistic Quantum Mechanics to Carbon Based Electronics 2. 연 사: 김 필 립 교수 (콜롬비아대학교) 3. 일 시: 2008년 10월 17일(금) 오후4:30 4. 장 소: 물리학과세미나실(31355호실) 5. 초 록: Graphitic Carbon Nanostructures: From Analogy of Relativistic Quantum Mechanics to Carbon Based Electronics Carbon based graphitic nanomaterials have been provided us opportunities to explore fundamental transport phenomena in low-energy condensed matter systems to reveal interesting analogy to the relativistic quantum mechanics. They have also provided the potential device applications based on the exotic charge transport phenomena in low-dimensional structures. The unique electronic band structure of graphene lattice yields a linear energy dispersion relation where the Fermi velocity replaces the role of the speed of light in usual Dirac Fermion spectrum. In this presentation we will discuss experimental consequence of charged Dirac Fermion spectrum in two representative low dimensional graphitic carbon systems: 1-dimensional carbon nanotubes and 2-dimensional graphene. Combined with semiconductor device fabrication techniques and the development of new methods of nanoscaled material synthesis/manipulation enables us to investigate mesoscopic transport phenomena in these materials. The exotic quantum transport behavior discovered in these materials, such as ballistic charge transport and unusual half-integer quantum Hall effect both of which appear even at room temperature. In addition, I will discuss electronic transport measurements in patterned locally gated graphene nanoconstrictions with tunable transmission and bipolar heterojunctions. We observe various unusual transport phenomena, such as energy gap formation in confined graphene structures which promise novel electronic device applications based on graphitic carbon nanostructures. 다운을 받으시려면 아래의 링크를 클릭해주세요. http://physics.skku.ac.kr/ppt/1017.ppt
번호 제목 날짜 조회 수
공지 <12/8(Thu.) 11:00am>노벨상 소개 강연 - 2016년 노벨 물리학상: 위상 응집 물리의 탄생 2016.11.28 1079506
606 <Oct.16(Wed.)> 솟구치는 초고에너지 입자의 미스테리 2019.10.10 137871
605 <10/1(Tue.) Mini-Workshop on BSM Physics with Neutrino Detectors 2019.09.30 82934
604 <Oct.2(Wed.)> Fundamental physics with high-energy atmospheric and cosmic neutrinos today and in the future 2019.09.26 68559
603 <9/26(Thu.) 4:30 pm ~ > Neutrino Physics and Dark Matter search in IBS 2019.09.24 105652
602 <9/24(Tue) 4:00 pm ~ > Structure Formation with Two Periods of Inflation: Beyond plain LCDM 2019.09.17 50415
601 <Sept.18(Wed.)> Rare-earth: versatility and capability 2019.09.16 82971
600 <9/17(Tue) 4:00 pm ~ >Dynamics of multiple-Q spin textures and its effect on electronic state 2019.09.10 64450
599 <Sept.11(Wed.)> Fantastic physics and materials, how to find them? 2019.09.06 83654
598 <9/2(Mon) 15:00 ~ >Status of the KM3NeT Deep Sea Neutrino Telescope 2019.08.26 79198
597 <8/30(Fri) 16:00 ~ >Structures of light neutron-rich nuclei, 17,19C 2019.08.22 88056
596 <8/26(Mon) 14:00 ~ >Constructing viable models of bouncing scenarios 2019.08.20 57920
595 <8/19(Mon) 13:30 ~ >Detection of cosmic rays in the PeV to EeV energy range file 2019.08.16 91640
594 <8/14(Wed.)>3D-strain induced superconductivity in La2CuO4+δ using a simple vertically aligned nanocomposite approach 2019.08.13 69160
593 <8/19(Mon) 14:00 ~ >Exploring topological matter in an atomic quantum simulator file 2019.07.26 77694
592 2019학년도 2학기 콜로퀴움 일정 2019.07.17 426866
591 <June.12(Wed.)> Ribocomputing: Cellular Logic Computation using RNA Devices file 2019.06.07 238625
590 <June.5(Wed.)> Fluid gravity duality 2019.05.29 62529
589 <May.22(Wed.)> Introduction to exotic quantum states in solids 2019.05.15 75996
588 <May.15(Wed.)> Three-body problems and three-body forces in Classic and Quantum Systems 2019.05.08 72109
587 <5/16(Thu.) 14:00 ~ >The Chiral anomaly without Landau levels 2019.05.08 128952